This bicycle safety light will help you make your visible on the road. -Be seen while riding your bicycle, this LED light is the perfect solution for night-time safety when biking. -Brand new, high quality, small, lightweight, long life. -Specially designed for the vocational rider or casual cyclist. -Simple to use, long lasting, and safety attached -Easy mount and release , installed in seconds before you get ready to ride -Secure, remains securely locked in position, even during off-road use -Durable and water resistant -Waterproof, shockproof. -3 Kinds of switch : Full light, Fast flash, Flash -Power :CR2016 batteries (included) -Light color :Red, blue, green, Multicolor